2653858685 has 4 divisors (see below), whose sum is σ = 3184630428. Its totient is φ = 2123086944.

The previous prime is 2653858681. The next prime is 2653858699. The reversal of 2653858685 is 5868583562.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 512297956 + 2141560729 = 22634^2 + 46277^2 .

It is a cyclic number.

It is not a de Polignac number, because 2653858685 - 2² = 2653858681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2653858685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2653858681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265385864 + ... + 265385873.

It is an arithmetic number, because the mean of its divisors is an integer number (796157607).

Almost surely, 2^2653858685 is an apocalyptic number.

It is an amenable number.

2653858685 is a deficient number, since it is larger than the sum of its proper divisors (530771743).

2653858685 is an equidigital number, since it uses as much as digits as its factorization.

2653858685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530771742.

The product of its digits is 13824000, while the sum is 56.

The square root of 2653858685 is about 51515.6159334235. The cubic root of 2653858685 is about 1384.4988451254.

The spelling of 2653858685 in words is "two billion, six hundred fifty-three million, eight hundred fifty-eight thousand, six hundred eighty-five".